The S.73 was the best Italian airliner of the 1930s. Not fancy technology here, it was built in the classic mixed construction: wooden wing, steel tube fuselage with metallic/fabric-covered. It had a fixed landing gear, but equipped with lovely spats. A design that was already dated in its heyday. As usual in Italian big aircraft, the S.73 was three-engined, a trend necessary due to the meagre power output of their local engines.
It sold reasonably well. SABENA bought eleven (seven of them built by the Belgian SABCA under license) and as we can see here they used some of them in their Congo route.
This SABENA’s poster is quite curious,to say the least: a bedouin worshiping a Savoia…, something very, very unlikely.